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5300Q502.doc 2005-12-16 Rev. AD
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The entity concept.
The Transmitter must be installed according to National Electrical Code
(ANSI-NFPA 70).
When installed in Class II locations the Transmitter shall be installed in an enclosure
with a specified ingress protections of IP6X according to IEC60529 and Dust-tight
conduit seals must be used.
Equipment that is FM-approved for intrinsic safety may be connected to barriers based
on the ENTITY CONCEPT. This concept permits interconnection of approved trans-
mitters, meters and other devices in combinations which have not been specifically
examined by FM, provided that the agency's criteria are met. The combination is then
intrinsically safe, if the entity concept is acceptable to the authority having jurisdiction
over the installation.
The entity concept criteria are as follows:
The intrinsically safe devices, other than barriers, must not be a source of power.
The maximum voltage Ui(V
MAX
) and current Ii(I
MAX
), and maximum power Pi(Pmax),
which the device can receive and remain intrinsically safe, must be equal to or greater
than the voltage (Uo or V
OC
or V
t
) and current (Io or I
SC
or I
t
) and the power Po which
can be delivered by the barrier.
The sum of the maximum unprotected capacitance (C
i
) for each intrinsically device and
the interconnecting wiring must be less than the capacitance (C
a
) which can be safely
connected to the barrier.
The sum of the maximum unprotected inductance (L
i
) for each intrinsically device and
the interconnecting wiring must be less than the inductance (L
a
) which can be safely
connected to the barrier.
The entity parameters Uo,V
OC
or V
t
and Io,I
SC
or I
t
, and C
a
and L
a
for barriers are
provided by the barrier manufacturer.
5300Q502.doc 2005-12-16 Rev. AD
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Installation Drawing 5300Q502.
Model 5331C,5331D, 5333C and
5333D
Non Hazardous Location
Hazardous (Classified) Location
Associated Apparatus
or Barrier
with
entity Parameters:
SENSOR
1
2
3
4
5
6
UM < 250V
Voc or Uo < Vmax or Ui
Isc or Io < Imax or Ii
Po < Pi
Ca or Co > Ci + Ccable
La or Lo > Li + Lcable
This device must not be
connected to any associated
apparatus which uses or
generates more than 250 VRMS
+
-
Terminal 1 , 2
Vmax or Ui: 30 V
Imax or Ii: 120 mA
Pmax or Pi: 0.84 W
Ci: 1 nF
Li:10 uH
Terminal 3,4,5,6
Only passive, or non-energy
storing devices such as RTD's
and Thermocouples may be
connected.
Ambient temperature limits
T4: -40 to + 85 deg. Celcius
T6: -40 to + 60 deg. Celcius
Class I,Division1, Groups, A,B,C,D
Class II Division 1 Groups E,F,G or
Class I, Zone 0, IIC
Model 5335C, 5335D.
Non Hazardous Location
Hazardous (Classified) Location
Associated Apparatus
or Barrier
with
entity Parameters:
SENSOR
1
2
3
4
5
6
UM < 250V
Voc or Uo < Vmax or Ui
Isc or Io < Imax or Ii
Po < Pi
Ca or Co > Ci + Ccable
La or Lo > Li + Lcable
This device must not be
connected to any associated
apparatus which uses or
generates more than 250 VRMS
+
-
Terminal 1 , 2
Vmax or Ui: 30 V
Imax or Ii: 120 mA
Pmax or Pi: 0.84 W
Ci: 1 nF
Li:10 uH
Terminal 3,4,5,6
Vt or Uo: 9.6 V
It or Io: 28 mA
Pt or Po: 67.2 mW
Ca or Co: 3.5 uF
La or Lo: 35 mH
Ambient temperature limits
T4: -40 to + 85 deg. Celcius
T6: -40 to + 60 deg. Celcius
Class I,Division1, Groups, A,B,C,D
Class II Division 1 Groups E,F,G or
Class I, Zone 0, IIC
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